Dishwasher

Abstract

To provide a dishwasher capable of suppressing dew condensation.SOLUTION: A dishwasher includes: a housing in which a suction port is formed on the back face; a washing tank stored inside the housing, in which dishes are stored, and which can be pulled out forward from the state that it is stored in the housing; a first duct provided inside the housing and in front of the washing tank, which communicates an exhaust port formed in front of the washing tank with the washing tank; blowing means disposed facing the suction port of the housing inside the housing and outside the washing tank; and a second duct disposed inside the housing and outside the washing tank, which is communicated with the first duct and circulates the air sent from the blowing means.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a dishwasher, and more particularly to a ventilation structure for a dishwasher. [Background technology]

[0002] One type of dishwasher that washes and dries dishes is known as a built-in type that is incorporated into kitchen furniture or a system kitchen. Patent Document 1 discloses a kitchen in which the dishwasher can be stored inside a cabinet and which is provided with a front door for ventilating the inside of the cabinet. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4412220 Summary of the Invention [Problem to be solved by the invention]

[0004] Dishwashers use hot water to wash dishes, which increases the temperature of the washing tub where dishes are stored and washed, and the housing that forms the outer shell. As a result, the air temperature may increase in the installation space where the dishwasher is installed, such as the cabinet that houses the dishwasher of Patent Document 1 or the inside of a cabinet that forms a system kitchen.

[0005] In addition, the water supply hose, which is the path for supplying hot water to the washing tub of the dishwasher, and the drain hose, which drains the wash water after washing, are exposed to the outside of the housing in the installation space of the dishwasher. As a result, a temperature difference occurs between the piping, water supply hose, or drain hose and the air in the installation space of the dishwasher, which can cause the temperature of the air in the installation space of the dishwasher to rise.

[0006] When the air temperature in the dishwasher's installation space rises, the amount of water that the air can hold increases, causing humidity to rise. Condensation can occur in the dishwasher's installation space due to the temperature difference between the air temperature in the dishwasher's installation space and the temperature of the components.

[0007] An object of the present disclosure is to provide a dishwasher that can suppress the occurrence of condensation in the installation space of the dishwasher. [Means for solving the problem]

[0008] The dishwasher according to the present disclosure includes a housing with an air intake formed on the rear surface, a washing tub housed inside the housing and capable of being pulled out forward from the housing, and containing dishes, and an exhaust port provided inside the housing and in front of the washing tub, which communicates with the washing tub. Consisting of piping a first duct; a blower disposed inside the housing and outside the cleaning tank facing the air intake port of the housing; and a blower disposed inside the housing and outside the cleaning tank, communicating with the first duct and allowing the air blown from the blower to circulate. Consisting of piping and a second duct. [Effects of the Invention]

[0009] In the dishwasher of the present disclosure, air in the installation space of the dishwasher is drawn in through the air intake, passes through the second duct, and is exhausted to the room outside the dishwasher via the first duct, thereby ventilating the installation space of the dishwasher, reducing temperature differences and preventing condensation. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is an external perspective view showing a system kitchen having a dishwasher according to a first embodiment of the present disclosure. [Figure 2] 1 is an external perspective view showing a system kitchen in a state where the washing tub of the dishwasher according to the first embodiment of the present disclosure is pulled out. FIG. [Figure 3] 1 is a front view of a dishwasher according to a first embodiment of the present disclosure. [Figure 4] 1 is a side cross-sectional view showing a state in which a washing tub is housed in a housing of a dishwasher according to a first embodiment of the present disclosure. [Figure 5] 1 is a side cross-sectional view showing a state in which a washing tub is pulled out from a housing of a dishwasher according to a first embodiment of the present disclosure. [Figure 6] FIG. 2 is a block diagram showing a control unit according to the first embodiment of the present disclosure. [Figure 7] 1 is a functional block diagram showing functions of a dishwasher according to a first embodiment of the present disclosure. [Figure 8] 6 is a flowchart showing control of a second blower fan in the dishwasher according to the first embodiment of the present disclosure. [Figure 9] 10 is a flowchart showing control of a second blower fan in a dishwasher according to a second embodiment of the present disclosure. [Figure 10] 11 is a flowchart showing control of a second blower fan in a dishwasher according to a third embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In each drawing, the same reference numerals denote the same or equivalent parts, and this applies throughout the specification. In addition, hatching is omitted in cross-sectional views to improve visibility. Furthermore, the forms of components shown in the entire specification are merely examples and are not limited to these descriptions.

[0012] Embodiment 1 <Overall configuration of System Kitchen 100> Fig. 1 is an external perspective view showing a system kitchen 100 having a dishwasher 1 according to embodiment 1 of the present disclosure. Fig. 2 is an external perspective view showing system kitchen 100 with washing tub 2 of dishwasher 1 according to embodiment 1 of the present disclosure pulled out. As shown in Figs. 1 and 2, dishwasher 1 is attached to system kitchen 100, for example. System kitchen 100 is an example of kitchen furniture.

[0013] Dishwasher 1 has a rectangular parallelepiped housing 3 that forms the main body. Dishwasher 1 is a unit partitioned by the housing 3. Housing 3 of dishwasher 1 is inserted from the front F of system kitchen 100 and placed on the installation surface of system kitchen 100. Dishwasher 1 does not have to be configured to be incorporated into system kitchen 100, but may be configured to be used standalone by being mounted on another housing or cabinet. Dishwasher 1 has a washing tub 2 that can be freely pulled out from housing 3 to the front F or rear B. Front F is in front of the user of system kitchen 100, that is, the front side. Washing tub 2 has an opening at the top. Dirty dishes are placed into washing tub 2 through the opening after a meal. Washing tub 2 washes the dishes placed through the opening.

[0014] The system kitchen 100 is also equipped with a cooking appliance 105 and a sink 104. The dishwasher 1, cooking appliance 105, and sink 104 are integrated to form the system kitchen 100. The system kitchen 100 is equipped with a drawer 101 for storing small kitchen items and a cabinet 102 for storing pots, frying pans, etc. The drawer 101 is arranged above the cabinet 102 at U. The drawers 101 are provided on both the left side L and the right side R of the dishwasher 1.

[0015] The upper part U of the dishwasher 1 is a flat part 103, which is a kitchen countertop. The flat part 103 is a placing part on which a cutting board or the like is placed. The flat part 103 can also be provided above the drawer 101.

[0016] Cooking device 105 is placed next to dishwasher 1, for example. Cooking device 105 heats a pot, frying pan, or the like by an electromagnetic induction coil on a placing surface on which the pot, frying pan, or the like is placed. Cooking device 105 has a built-in grill 105a for grilling fish, etc., inside D below the placing surface.

[0017] Sink 104 is disposed, for example, next to dishwasher 1. Sink 104 is a tank-like unit into which water flows out from a faucet 104a attached to the kitchen.

[0018] <External configuration of Dishwasher 1> Fig. 3 is a front view of the dishwasher 1 according to the first embodiment of the present disclosure. As shown in Fig. 3, the dishwasher 1 has a front portion 20. The front portion 20 is disposed in front F of the washing tub 2. An exhaust port 10 is formed in the front portion 20. The front portion 20 is composed of a design surface portion 6, a handle 11, an operation unit 32, and a display unit 33.

[0019] The decorative surface portion 6 is composed of a decorative panel (not shown) located at the front F, and a flat base (not shown) located at the rear B of the decorative panel and to which the decorative panel is fixed. The decorative panel and the base are separate bodies. The decorative panel and the base may also be integrated. The decorative surface portion 6 is decorated with a design of the same color or pattern as the color or pattern on the front of another unit adjacent to the dishwasher 1 in the system kitchen 100. The decorative surface portion 6 is not limited to the form described above.

[0020] The handle 11, exhaust port 10, operating unit 32, and display unit 33 are arranged above the design surface unit 6. The handle 11 is provided so that a user can place their hand on it to pull out the washing tub 2 forward F. The exhaust port 10 is formed to the left L of the handle 11. The exhaust port 10 discharges exhaust air from the dishwasher 1 into the room. The display unit 33 is arranged to the right R of the handle 11. The display unit 33 displays the operating status of the dishwasher 1. The operating unit 32 is arranged to the right R of the display unit 33. The operating unit 32 is provided so that a user can operate the operation of the dishwasher 1.

[0021] <Internal configuration of Dishwasher 1> Fig. 4 is a side cross-sectional view of dishwasher 1 according to embodiment 1 of the present disclosure, showing a state in which washing tub 2 is housed in housing 3. Fig. 5 is a side cross-sectional view of dishwasher 1 according to embodiment 1 of the present disclosure, showing a state in which washing tub 2 is pulled out from housing 3.

[0022] As shown in Figures 4 and 5, dishwasher 1 has a first duct 39, a second duct 41, and a second blower fan 40, which are arranged outside washing tub 2 and inside housing 3. Second blower fan 40 is an example of a blower means. Dishwasher 1 also has a temperature detector 51 and a humidity detector 52. Inside washing tub 2, there are provided a heater 35, a washing pump 36, a first blower fan 37, and a drying heater 38 (see Figure 7), which will be described later.

[0023] Dishwasher 1 has an air intake 50 formed in rear portion 21 of housing 3. Air intake 50 is composed of at least one opening 50a. Air intake 50 is located behind B of rear portion 21 and communicates with the interior space of system kitchen 100. Air from the interior space of system kitchen 100 is drawn in through air intake 50.

[0024] The first duct 39 is provided in front F of the cleaning tank 2. The first duct 39 is formed to connect the cleaning tank 2 and the exhaust port 10. The first duct 39 is disposed between the cleaning tank 2 and the front part 20. The first duct 39 is a path through which humid air inside the cleaning tank 2 circulates and reaches the exhaust port 10.

[0025] The second blower fan 40 has an intake section (not shown) that draws in air and an outlet section (not shown) that blows out air. The air intake section of the second blower fan 40 is disposed opposite the air intake port 50. The second blower fan 40 can be freely pulled out from the housing 3 together with the cleaning tank 2 to the front F or rear B.

[0026] The second duct 41 is formed so that its rear B side communicates with the outlet portion of the second blower fan 40. The second duct 41 is formed so that its front F side communicates with the first duct 39. The second duct 41 can be freely drawn out from the housing 3 together with the cleaning tank 2 to the front F or rear B. The second duct 41 circulates the air blown out from the outlet portion of the second blower fan 40 and causes it to flow into the first duct 39.

[0027] The temperature detection means 51 is arranged inside the rear portion 21 of the housing 3. The temperature detection means 51 may also be arranged inside the side of the housing 3. The temperature detection means 51 is, for example, a thermistor. The temperature detection means 51 has a temperature detection unit (not shown). The temperature detection unit is exposed to the outside of the temperature detection means 51. The temperature detection means 51 measures the temperature outside the rear portion 21 or the outside of the side by the temperature detection unit.

[0028] The humidity detection means 52 is arranged inside the rear surface 21 of the housing 3. The humidity detection means 52 may also be arranged inside the side surface of the housing 3. The humidity detection means 52 has a humidity detection unit (not shown). The humidity detection unit is exposed to the outside of the humidity detection means 52. The humidity detection means 52 measures the humidity outside the rear surface 21 or outside the side surface using the humidity detection unit.

[0029] The temperature detection means 51 and the humidity detection means 52 are arranged in the vicinity of each other. The temperature detection means 51 and the humidity detection means 52 may be an integrated temperature and humidity detection means. By arranging the temperature detection means 51 and the humidity detection means 52 in the vicinity of each other, the temperature and humidity can be calculated accurately. This allows for highly accurate control.

[0030] <Control unit 31 of dishwasher 1> Fig. 6 is a block diagram showing control unit 31 according to embodiment 1 of the present disclosure. Control unit 31 controls the operation of dishwasher 1. As shown in Fig. 6, control unit 31 is a processing circuit having a microcomputer equipped with CPU 311, memory 312, and input / output device 313 such as an I / O port.

[0031] CPU 311 is an abbreviation for Central Processing Unit, and is also called a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, processor, or DSP (Digital Signal Processor). Memory 312 is composed of, for example, non-volatile or volatile semiconductor memory such as RAM (Random Access Memory), ROM (Read Only Memory), flash memory, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), magnetic disk, flexible disk, optical disk, compact disk, minidisk, DVD (Digital Versatile Disk), etc. Control unit 31 realizes processing using programs stored in memory 312.

[0032] Fig. 7 is a functional block diagram showing functions of dishwasher 1 according to embodiment 1 of the present disclosure. As shown in Fig. 7, dishwasher 1 is operated by control unit 31, operation unit 32, display unit 33, notification unit 34, temperature detection means 51, humidity detection means 52, heater 35, wash pump 36, first blower fan 37, drying heater 38, and second blower fan 40.

[0033] Specifically, for example, the temperature detection means 51 and the humidity detection means 52 notify the control unit 31 of the measurement results. The display unit 33 displays a signal to start the operation of the second blower fan 40 based on a command from the control unit 31. The display unit 33 also displays that the second blower fan 40 is operating based on a command from the control unit 31. The notification unit 34 notifies the signal to start the operation of the second blower fan 40 based on a command from the control unit 31 using, for example, a buzzer or an announcement.

[0034] Based on a command from the control unit 31, the second blower fan 40 draws air from the space inside the system kitchen 100 behind the rear part 21 of the housing 3 through the air intake 50. The second blower fan 40 then draws in the air and blows it out toward the second duct 41, passing through the first duct 39 that is in communication with the second duct 41 and then expelling it from the exhaust vent 10.

[0035] The operation unit 32 notifies the control unit 31 of the operation performed by the user. The heater 35 and the cleaning pump 36 perform the cleaning process based on the command from the control unit 31. The first blower fan 37 and the drying heater 38 perform the drying process based on the command from the control unit 31.

[0036] <Basic operation of Dishwasher 1> The dishwasher 1 has a washing process, a rinsing process, and a drying process. First, when dishwasher 1 starts washing dirty dishes, the user pulls handle 11 to pull washing tub 2 out of housing 3, exposing the opening at the top of washing tub 2 to its full extent, and then arranges the dirty dishes in washing tub 2, pours detergent into the washing water in washing tub 2, and pushes design surface 6 to push washing tub 2 back into housing 3.

[0037] When the washing tub 2 is pushed into the housing 3 and the closing operation is completed, the dishwasher 1 starts to operate. A series of operations by the dishwasher 1 are performed automatically in accordance with a program set in the microcomputer of the control unit 31.

[0038] First, the washing process is performed. In the washing process, a water supply valve (not shown) is opened to supply washing water into the washing tank 2. When a water volume sensor (not shown) detects that a predetermined amount of washing water has been supplied, the water supply valve is closed. The washing water is heated to a desired temperature by energizing the heater 35. The heated washing water is then pressure-fed to a washing nozzle (not shown) by driving the washing pump 36, and sprayed from the nozzle holes of the washing nozzle, thereby washing the tableware. The washing nozzle sprays washing water, for example, diagonally upward, and rotates due to the reaction force caused by the spraying of washing water. As the washing nozzle rotates, the washing water is sprayed evenly onto the tableware arranged in the washing tank 2. The washing water sprayed into the washing tank 2 falls and collects at the bottom of the washing tank 2, and is then circulated by being sprayed again from the washing nozzle. The circulation of washing water is repeated multiple times during the washing process. In the cleaning process, the cleaning tank 2 is housed in the housing 3, so that the cleaning water does not splash outside the cleaning tank 2.

[0039] After a predetermined time has elapsed, the power supply to the heater 35 and the cleaning pump 36 is stopped. The dirty water in the cleaning tank 2 is discharged to the outside of the housing 3 by driving a drain pump (not shown), and the cleaning process is completed.

[0040] When the washing process is completed, the rinsing process begins. In the rinsing process, when the drainage of the wastewater is completed, the drain pump is de-energized and the water supply valve is opened to supply new washing water into the washing tank 2. Thereafter, the same operations as in the washing process described above are performed to rinse the dishes. After a predetermined time has elapsed, the washing water used for rinsing is drained and rinsing is performed again. In the rinsing process, rinsing and draining are repeated several times.

[0041] After the rinsing step is completed, the drying step begins. In the drying step, first blower fan 37 and drying heater 38 are energized, and outside air is introduced into washing tub 2. The outside air is heated by drying heater 38 to become warm air, which is then sent into washing tub 2 to dry the dishes and the entire interior of washing tub 2. The warm air used for drying is discharged from exhaust port 10 into the room outside dishwasher 1.

[0042] When a predetermined time has elapsed in the drying process, the power supply to the first blower fan 37 and the drying heater 38 is stopped, and the drying process ends. This completes the washing, rinsing and drying of the tableware.

[0043] The dishes in the washing tub 2 are removed by the user by pulling the washing tub 2 out of the housing 3 in the forward direction F through the opening at the top of the washing tub 2.

[0044] <Operation of the second blower fan 40> Fig. 8 is a flowchart showing the control of second blower fan 40 in dishwasher 1 according to embodiment 1 of the present disclosure. As shown in Fig. 8, controller 31 controls second blower fan 40 when dishwasher 1 is in a standby state, that is, when none of the washing, rinsing, and drying steps is being performed.

[0045] Specifically, in step S1, the control unit 31 determines whether the temperature change and humidity change detected by the temperature detection means 51 and the humidity detection means 52 are predetermined amounts of change. If the control unit 31 determines in step S1 that the temperature change and humidity change are predetermined amounts of change (YES in step S1), the control unit 31 proceeds to step S2 and operates the second blower fan 40. If the control unit 31 determines in step S1 that the temperature change and humidity change are not predetermined amounts of change (NO in step S1), the control unit 31 proceeds to step S3.

[0046] In step S3, the control unit 31 determines whether the temperature and humidity correspond to the values ​​before the temperature and humidity changes. If the control unit 31 determines in step S3 that the temperature and humidity do not correspond to the values ​​before the temperature and humidity changes (NO in step S3), the process returns to step S2 and the second blower fan 40 continues to operate.

[0047] In step S3, when the control unit 31 determines that the temperature and humidity correspond to the values ​​before the temperature and humidity changes (YES in step S3), the control unit 31 proceeds to step S4 and stops the operation of the second blower fan 40. This ends the control of the second blower fan 40 by the control unit 31.

[0048] When the second blower fan 40 is operating, the control unit 31 displays on the display unit 33 that the second blower fan 40 is operating. This notifies the user that the second blower fan 40 is operating.

[0049] Temperature and humidity changes occur, for example, when the use of cooking appliance 105 causes the temperature of the space inside system kitchen 100 to rise. Temperature and humidity changes also occur when the use of hot water in sink 104 causes the temperature of the pipes to rise, resulting in a rise in the temperature of the space inside system kitchen 100. Temperature and humidity changes also occur when an item is placed on flat surface 103, which serves as the countertop of system kitchen 100, causing the temperature of the underside of flat surface 103 to drop, resulting in a drop in the temperature of the space inside system kitchen 100.

[0050] When the temperature and humidity of the air inside the system kitchen 100 change, the air is sucked in through the air intake 50 formed in the rear part 21 of the housing 3 by the operation of the second blower fan 40. The air sucked in through the air intake 50 further passes through the second duct 41 and the first duct 39 and is discharged from the exhaust vent 10 formed in the front part 20 of the washing tub 2. As a result, the air inside the system kitchen 100 is ventilated and the temperature difference inside the system kitchen 100 is suppressed, thereby suppressing the occurrence of condensation inside the system kitchen 100.

[0051] The control unit 31 does not necessarily have to be configured to operate the second blower fan 40 based on a temperature change or a humidity change. The control unit 31 may be configured to operate the second blower fan 40 based on, for example, a predetermined temperature or a predetermined humidity, and is not particularly limited.

[0052] According to the dishwasher 1 according to the first embodiment of the present disclosure, the air drawn in from the intake port 50 formed in the rear part 21 of the housing 3 passes through the second duct 41 and flows into the first duct 39 which is connected to the exhaust port 10 formed in the front part 20 of the washing tub 2. Front part 20The air is exhausted from exhaust port 10 formed in rear B of rear portion 21. This ventilates the installation space of dishwasher 1 behind B, suppressing temperature differences in the installation space and preventing condensation. Furthermore, by providing second blower fan 40 and second duct 41, there is no need to provide a ventilation system separate from dishwasher 1. This allows the installation space of dishwasher 1 to be ventilated without sacrificing storage space in the cabinet in which dishwasher 1 is installed.

[0053] Dishwasher 1 also includes temperature detection means 51 and humidity detection means 52, and second blower fan 40 operates based on the temperature and humidity detected in the air in the installation space of dishwasher 1. If, for example, the temperature or humidity changes in the installation space of dishwasher 1, second blower fan 40 operates, and air in the installation space is discharged from exhaust port 10, thereby ventilating the installation space. This reduces temperature differences in the installation space and prevents condensation.

[0054] Furthermore, since the temperature detection means 51 and humidity detection means 52 are provided on the rear side 21 or side of the housing 3, the temperature and humidity in the installation space of the dishwasher 1 can be detected with high accuracy.

[0055] Second blower fan 40 operates when dishwasher 1 is in standby mode. Even when dishwasher 1 is in standby mode, the temperature of the space in which dishwasher 1 is installed changes due to factors other than dishwasher 1, such as cooker 105, sink 104, or piping through which hot water from sink 104 flows. In this case, too, operation of second blower fan 40 ventilates the space in which dishwasher 1 is installed, thereby reducing temperature differences and preventing condensation.

[0056] Additionally, the second blower fan 40 and the second duct 41 can be pulled out from the housing 3 together with the cleaning tank 2 to the front F of the housing 3 from a state in which they are housed in the housing 3. This allows the air drawn in through the air intake 50 formed in the rear part 21 of the housing 3 to smoothly reach the air exhaust 10 formed in the front part 20 of the cleaning tank 2.

[0057] Embodiment 2 9 is a flowchart showing the control of the second blower fan 40 in a dishwasher 1 according to a second embodiment of the present disclosure. The second embodiment differs from the first embodiment in that the second blower fan 40 is controlled when the washing step or the rinsing step is being performed. In the second embodiment, the same parts as those in the first embodiment are given the same reference numerals and their description is omitted, and the following description will focus on the differences from the first embodiment.

[0058] As shown in Fig. 9, in step S11, control unit 31 determines whether the dishwasher 1 is performing the washing process or the rinsing process. If control unit 31 determines in step S11 that the dishwasher 1 is performing either the washing process or the rinsing process (YES in step S11), the process proceeds to step S12. In step S12, control unit 31 operates second blower fan 40, and the process proceeds to step S13. On the other hand, if control unit 31 determines in step S11 that the dishwasher 1 is not performing either the washing process or the rinsing process (NO in step S11), the process ends.

[0059] In step S13, control unit 31 determines whether either the washing process or the rinsing process by dishwasher 1 has finished. If control unit 31 determines in step S13 that either the washing process or the rinsing process by dishwasher 1 has not finished (NO in step S13), control unit 31 returns to step S12 and operates second blower fan 40. On the other hand, if control unit 31 determines in step S13 that either the washing process or the rinsing process by dishwasher 1 has finished (YES in step S13), control unit 31 proceeds to step S14. In step S14, control unit 31 stops second blower fan 40 and ends the process.

[0060] When the dishwasher 1 is performing the washing or rinsing process, the temperature and humidity of the space inside the system kitchen 100 change. The control unit 31 starts the operation of the second blower fan 40 while the dishwasher 1 is performing the washing or rinsing process, thereby ventilating the inside of the system kitchen 100. This reduces the temperature difference in the space inside the system kitchen 100, and prevents condensation from occurring.

[0061] As described above, according to the dishwasher 1 according to the second embodiment of the present disclosure, even if the temperature and humidity of the air in the installation space of the dishwasher 1 changes during the washing process, the inside of the installation space is ventilated by operating the second blower fan 40. This reduces temperature differences in the installation space of the dishwasher 1, and prevents condensation from forming in the installation space of the dishwasher 1.

[0062] Embodiment 3 10 is a flowchart showing the control of the second blower fan 40 in a dishwasher 1 according to embodiment 3 of the present disclosure. Embodiment 3 differs from embodiments 1 and 2 in that the second blower fan 40 is controlled when the drying step is being performed. In embodiment 3, parts that are common to embodiments 1 and 2 are given the same reference numerals and their description will be omitted, and the description will focus on the differences from embodiments 1 and 2.

[0063] 10, in step S21, the control unit 31 determines whether the drying process is being performed by the dishwasher 1. In the drying process, the air inside the washing tub 2 is discharged from the washing tub 2 in a state in which the temperature and humidity have increased due to drying the inside of the washing tub 2, and flows into the first duct 39.

[0064] If, in step S21, control unit 31 determines that the drying process is being performed by dishwasher 1 (YES in step S21), the process proceeds to step S22. In step S22, control unit 31 operates second blower fan 40, and the process proceeds to step S23. As second blower fan 40 operates, air is sucked in through air intake 50 in rear surface portion 21 of housing 3, passes through second duct 41, and flows into first duct 39. On the other hand, if, in step S21, control unit 31 determines that the drying process is not being performed by dishwasher 1 (NO in step S21), the process ends.

[0065] In step S23, control unit 31 determines whether the drying process by dishwasher 1 has finished. If control unit 31 determines in step S23 that the drying process by dishwasher 1 has not finished (NO in step S23), the process returns to step S22 and operates second blower fan 40. On the other hand, if control unit 31 determines in step S23 that the drying process by dishwasher 1 has finished (YES in step S23), the process proceeds to step S24. In step S24, control unit 31 stops second blower fan 40 and ends the process.

[0066] In this way, during the drying process, the air that has dried the inside of the washing tub 2 during the drying process and the air that has passed through the second duct 41 are mixed in the first duct 39, and both are discharged from the exhaust port 10 formed in the front part 20 of the washing tub 2. The air whose temperature and humidity have increased during the drying process is drawn in through the air intake port 50 and mixed with the air that has passed through the second duct 41, thereby reducing the temperature of the air discharged from the exhaust port 10 during the drying process and allowing the dishwasher 1 to be used safely. In addition, because the humidity of the air discharged from the exhaust port 10 is reduced, condensation is prevented from occurring near the exhaust port 10 and on the underside of the kitchen countertop.

[0067] According to the dishwasher 1 according to the third embodiment of the present disclosure described above, the second blower fan 40 operates during the drying process, and the air that has passed through the second duct 41 is mixed in the first duct 39 with the air that has dried the inside of the washing tub 2 during the drying process. Both of the mixed airs are discharged from the exhaust port 10 formed in the front part 20 of the washing tub 2, so that the temperature and humidity of the air that has dried the inside of the washing tub 2 during the drying process are reduced, and it is possible to suppress the occurrence of condensation around the exhaust port 10, for example.

[0068] It should be noted that the first to third embodiments can be combined as appropriate.

[0069] Various aspects of the present disclosure are summarized below as appendices.

[0070] (Appendix 1) A housing with an air intake on the back, a washing tub that is housed inside the housing, can be pulled out forward from the housing, and contains dishes; a first duct provided inside the housing and in front of the cleaning tank, the first duct communicating the cleaning tank with an exhaust port formed in front of the cleaning tank; a blower disposed inside the housing and outside the cleaning tank, facing the air intake of the housing; a second duct disposed inside the housing and outside the cleaning tank, communicating with the first duct and allowing the air blown from the blowing means to circulate; Dishwasher with. (Appendix 2) Further comprising a temperature detection means and a humidity detection means, The air blowing means operates based on the temperature detected by the temperature detecting means and the humidity detected by the humidity detecting means. Dishwashers as described in Appendix 1. (Appendix 3) The temperature detection means and the humidity detection means are The housing is provided on the rear side or the side Dishwashers as described in Appendix 2. (Appendix 4) The air blowing means operates during standby. Attachment 1 - 3 any one of the dishwasher. (Appendix 5) The air blowing means operates during the cleaning process. Attachment 1 - 4 any one of the dishwasher. (Appendix 6) The air blowing means operates during the drying process. 6. The dishwasher according to any one of appendices 1 to 5. (Appendix 7) The air blowing means and the second duct are The cleaning tank can be pulled out forward from the housing. 7. The dishwasher according to any one of appendices 1 to 6. (Appendix 8) The housing is inserted into the kitchen furniture from the front and placed on the installation surface of the kitchen furniture. 8. The dishwasher according to any one of appendices 1 to 7. [Explanation of symbols]

[0071] 1 dishwasher, 2 washing tub, 3 housing, 6 design surface portion, 10 exhaust port, 11 handle, 20 front portion, 21 rear portion, 31 control portion, 32 operation portion, 33 display portion, 34 notification portion, 35 heater, 36 washing pump, 37 first blower fan, 38 drying heater, 39 first duct, 40 second blower fan, 41 second duct, 50 air intake port, 50a opening, 51 temperature detection means, 52 humidity detection means, 100 system kitchen, 101 drawer, 102 storage cabinet, 103 flat portion, 104 sink, 104a faucet, 105 cooking heater, 105a grill, 311 CPU, 312 memory, 313 input / output device.

Claims

1. A housing with an air intake on the back, a washing tub that is housed inside the housing, can be pulled out forward from the housing, and contains dishes; a first duct provided inside the housing and in front of the cleaning tank, the first duct being configured by a pipe connecting the cleaning tank to an exhaust port formed in front of the cleaning tank; a blower disposed inside the housing and outside the cleaning tank, facing the air intake of the housing; a second duct arranged inside the housing and outside the cleaning tank, communicating with the first duct and configured as a pipe for circulating the air blown from the blowing means; Dishwasher with.

2. Further comprising a temperature detection means and a humidity detection means, The air blowing means operates based on the temperature detected by the temperature detecting means and the humidity detected by the humidity detecting means.

2. The dishwasher of claim 1.

3. The temperature detection means and the humidity detection means are The housing is provided on the rear side or the side 3. The dishwasher of claim 2.

4. The air blowing means operates during standby. The dishwasher according to any one of claims 1 to 3.

5. The air blowing means operates during the cleaning process. The dishwasher according to any one of claims 1 to 3.

6. The air blowing means operates during the drying process. The dishwasher according to any one of claims 1 to 3.

7. The air blowing means and the second duct are The cleaning tank can be pulled out forward from the housing. The dishwasher according to any one of claims 1 to 3.

8. The housing is inserted into the kitchen furniture from the front and placed on the installation surface of the kitchen furniture. The dishwasher according to any one of claims 1 to 3.

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